In Frostpunk 2 cores are difficult to come by. Unlike other resources such coal, oil, and food, you won't find core deposits within the borders of New London. Cores are components from machinery that predate the Great Frost, and they can't be manufactured: they can only be found.
If you played the original Frostpunk, you may remember that cores were important then, too (they were called "steam cores" in the first game.) They're the only resource that you can't create or produce yourself. Cores are extremely important in Frostpunk 2: they're components necessary to unlock advanced buildings and upgrade your city's generator. Here's how to find them.
